This clip is an introduction to the human heart. We find out about its location within the body and its function as a pump. The heart sits within the chest cavity between the lungs and is about the size of a fist. Essentially it is a muscle which functions as a really powerful pump. The heart takes in blood low in oxygen from the body. It pumps it through the right side of the heart and on to the lungs. In the lungs the blood passes through very small blood vessels and absorbs oxygen. The freshly oxygenated blood is pumped back through the heart and on to the rest of the body where the oxygen provides fuel for muscles and organs.

This clip is from:
Science Clips, Keeping Healthy
First broadcast:
28 April 2009

As part of a topic on the human body, the clip provides the main facts about the functions of the heart. Once the clip has been played, pupils could prepare their own presentation to explain the way the organ works, using visual aids to illustrate their point. Alternatively, they could write a voiceover to accompany the various images on the screen. A grid could be provided to help the children structure their talk alongside the various frames. More able pupils could add additional information and facts they have discovered through research.